                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}\\
                    &\multicolumn{1}{c}{\shortstack{Total Ride \\ Payments (Log)}}&\multicolumn{1}{c}{\shortstack{Total Ride \\ Payments}}&\multicolumn{1}{c}{\shortstack{Total \\ Rides (Log)}}&\multicolumn{1}{c}{\shortstack{Total \\ Rides}}&\multicolumn{1}{c}{\shortstack{Active \\ Firms (Log)}}&\multicolumn{1}{c}{\shortstack{Active \\ Firms}}\\
\midrule
Prior Auth.         &      -1.116\sym{**} &   -718363.6\sym{+}  &      -0.900\sym{***}&     -3613.4\sym{+}  &      -0.286\sym{***}&      -13.70\sym{*}  \\
                    &     (0.344)         &  (397999.5)         &     (0.172)         &    (1999.2)         &    (0.0642)         &     (5.773)         \\
\midrule
Dep. Var. Mean      &       9.838         &    399718.0         &       5.298         &      1977.1         &       2.114         &       16.60         \\
Observations        &        8208         &        8208         &        8208         &        8208         &        8208         &        8208         \\
